Why ST artists release on labels besides ST?

Seems like more and more Stones Throw artists are releasing projects on various labels (i.e. Bang Ya Head, Madlib Invazion, Kash Roc, etc.) other than Stones Throw. Why is this? Are these labels affiliated with Stones Throw (like Now-Again)? Is there some kind of distribution deal going on? I see that Stones Throw still promotes a lot of these releases and sells them in their store.

It just seems like most of these projects are perhaps going in a different direction and ST doesn't maybe want the ST name on it, but happy to help promote/distribute.
Also, Now Again and ST are no longer really "together". Egon has left ST, and no NA titles are available in the store anymore.
Egon is Madlib's manager and works with him, and interesting that after he left, Madlib has put out a bunch of stuff through Madlib Invazion, but not ST.
I'm sure it's all still a family thing and all good when it boils down, but maybe there are just certain projects they don't want to have the ST name on and are solely responsible for promo, etc.

Also, Now Again and ST are no longer really "together". Egon has left ST, and no NA titles are available in the store anymore.Egon is Madlib's manager and works with him, and interesting that after he left, Madlib has put out a bunch of stuff through Madlib Invazion, but not ST.

That reminds me... I recently purchased some stuff from Rappcats.com (which I believe is Madlib's site) and PayPal showed that the payment went to Now-Again Records.

Seems like more and more Stones Throw artists are releasing projects on various labels (i.e. Bang Ya Head, Madlib Invazion, Kash Roc, etc.) other than Stones Throw. Why is this? Are these labels affiliated with Stones Throw (like Now-Again)? Is there some kind of distribution deal going on? I see that Stones Throw still promotes a lot of these releases and sells them in their store.